Stovepipe



STOVEPIPE Filed Dec. 26, 1954 3' Sheets-Sheet 1 Aug. 18, 1936. c. K. WIDMAIER. JR

STOVEPIPE Filed Dec. 26, 1934 3 Sheets-Sheet 3 Patented Aug. 18, 1936 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to a stove or heater pipe for connecting the stove or heater to the chimney. The object of the invention resides in the provision of a pipe of this nature having a lining mounted therein which will resist the ill effects of heat, soot, acid and gases.

Another important object of this invention resides in the provision of a pipe of this nature in combination with a special coupling so that two or more sections may be used in the pipe line leading from the stove or heater to the chimney.

Another very important object of the invention resides in the provision of a pipe of this nature which is comparatively simple in its construction, inexpensive to manufacture, durable, thoroughly efficient and reliable in use, easy to assemble and disassemble, and otherwise well adapted for the purpose to which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention consists in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings:

Figure l is an end view of sections of pipe embodying the features of my invention.

Figure 2 is a side elevation thereof.

Figure 3 is a sectional view taken substantially on the line 33 of Figure 1.

Figure 4 is a sectional view taken substantially on the line 4-4 of Figure 3.

Figure 5 is a detail section taken substantially on the line 55 of Figure 2.

Figure 6 is a fragmentary perspective View showing one end of the closure strip for the seam.

Figure 7 is a fragmentary perspective view showing adjacent ends of the flanges of the seam for receiving the strip.

Figure 8 is a perspective view showing the ends only of a band.

The invention provides for the construction of pipes in sections which extend from a heater or stove to the chimney. The invention is herein 5 illustrated with the section of pipe that joins the lip or flange on the heater, which section is indicated at A and the next succeeding section indicated at 2|. All of the pipe sections are formed in a similar manner and it is believed that a description of the formation of section A will familiarize the art with the construction of the other sections.

The pipe sections are each formed of a rigid cylindrical lining 5 of suitable material, preferably fire clay and capable of resisting heat, soot,

acid and gases. About this cylindrical lining there is a metal sheet 6 of a split cylindrical formation, the seam of which includes flanges 1 formed integrally along the edges of the slit and bent outwardly and over upon the sheet as clear- 5 1y illustrated in Figures 5 and '7. An elongated slip strip 8 has flanges 9 folded over upon the strip and directed toward each other and terminating in spaced relationship. This strip slides over the flanges l and draws the sheet 6 tightly 10 about the cylindrical lining 5 thereby clamping the sheet to the lining in fixed relation.

A band I0 is disposed about one end of the sheet 6 and has its ends overlapping as shown to advantage in Figure 1. On the band I0 are 15 secured right angle lugs ll apertured to receive the bolt I2 and the nut I4 is engaged on this bolt so that the band In may be tightly clamped about the sheet 6. In the band is a bump H) which fits over the strip 8. 20

The band In joins the confronting ends of the sections A and 2| together. This band also provides a support all around the sheets 6 of the adjoining sections as will be seen in Figure 3, one half of the band bearing on the sheet of section 25 A and the other half bearing on the sheet of section 2|.

Now since section A has been selected as being the one next to the heater it is necessary to provide the end thereof with a proper fitting. For 30 this purpose a band I5 is disposed about the end of sheet 6 that lies next to the heater or stove, with the ends overlapping. The overlapped ends are formed with registering openings through which extend bolts [6 by which the ends of the 35 hand are secured together. The edge of the band l5 extends belowthe sheet 6 and is formed with a channelled flange I! which flange extends from one end of the band to a point adjacent the other end as shown in Figure 8 to allow for the over- 40 lapping ends of the band.

The channel on the flange l 1 opens on the outside; In the channel is seated the inner periphery of a ring disk. The outer periphery of the ring disk I8 is joined to the upper edge, as at 5 20, to sleeve I9 which fits into the lip or flange which extends from the heater or stove.

It is pointed out that the width of the disk I8 is such as to accommodate the size of sleeve l9 that conformably fits the lip or flange on the 50 stove or heater. The invention is illustrated to conform to the practice in the heating art where the entrance to the chimney is less in diameter than the lip or flange on the stove or heater. As is the custom in the trade, the pipe sections here 55 Vi showniare'selected with the same diameter as .the entrance into the chimney. Where, however,

the chimney entrance is greater in diameter than the lip or flange on the heater or stove, the fitting on the end of section A may be reversed .to that shown particularly in Figures 2am 3 of the drawings. That is to say, sleeve l9 may be mounted on the end of section'A whileband l5 is then fitted on the lip orj flange in theheater or stove; a

7 "While the invention is illustrated in connection with cylindrical sections of pipe, the construction described is'adaptable to pipes of oral or elbow r sections. also. In the latter event the'slide strips I "15 V sary where the seam is straight as in the oval- 8 are made of more flexible metal than is necesor cylindrical sections, and these 'slideistrips when tappedin a manner well kn'o'wnto'the sheet metal A'lined stove pipe comprising lengths of self sustaining heat resisting tubes disposed in end to end relation, a flexible metallic covering for said tubes co-extensive in lengththerewith and secured thereabout, and coupling means for said covered tubes comprising a strip of flexible material bridging the 'jOiIltS therebetween, and

means 'for drawing said strip in clamping relation to said covered tube walls. 7

' CHARLES KINSLEYQ WIDMAIER, JR'. 

